By tapping the potential and upgrading the

Comparative Analysis of the Chinese Prepositions Jingguo and Tongguo;

“经过”和“通过”的比较分析

The word tongguo in Mandarin can be used as a verb, as well as a preposition.

现代汉语中,“通过”既可作动词,又可作介词,各有不同的意义和用法,又有一定联系。